when I looked into this.....
The basic consensus was. it was more important that the wheels are aligned in the same direction.
I.E both pointing in direction of travel
The alignment centre to centre was a bit more problematic to get definitive answers for.
Max offset varied depending on who you spoke too! The answers i got varied from 3-25mm & eventually I just decided to get the minimum I could an see what happened
Strangly after finishing mine, i spoke to Harley Davidson & they were the most helpfull ....
Incidently,They also quoted the largest offsets
..... But they, as a rule of thumb said. The offset needs to be less than half the difference between front and rear wheel width. ....
I.E. on mine. < 50% (280 rear - 180 front) giving me anything less than a whopping 50mm to play with:nuts:
..... And did warn of strange tyre wear and possible odd handling carictoristics & ,off course, the lower the better
Never did actually measure my final offset properly but always had a contingency plan........
Basically I woulda gone too The next size down tyre! that woulda been easily centred :thumbsup:
........... for if I couldn't live with it. But Yan had already pre warned me about riding technique and I actually found I like having something that handles & rides totally differently from my other bikes.
The worst thing I found, other than having to re-learn riding, was hiding it! Even a slight offset makes a symetrical bike look like, either your subframes bent, or the wheels far more offset than it actually is!